<template>
    <div class="goodsinfo-container">

            <transition 
            @before-enter='beforeenter'
            @enter='enter'
            @after-enter='afterenter'
            >

                <div class="ball" v-show='ballflag' ref="ball"></div>
            </transition>

            
            

            <swiper :lunboList="lunboList" :isfull="false"></swiper>

            <div class="mui-card">
				<div class="mui-card-header">{{goodinfo.title}}</div>
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<p class="price">市场价：<del>￥{{goodinfo.market_price}}</del> 销售价：<span class='now-price'>￥{{goodinfo.sell_price}}</span></p>
                        <p>购买数量 <numbox :max="goodinfo.stock_quantity" @getcount="getSelectCount"></numbox></p>
                        <p>
                            <mt-button type="primary">立即购买</mt-button>
                            <mt-button type="danger" @click='addToCar'>加入购物车</mt-button>
                        </p>
					</div>
				</div>
			</div>

            <div class="mui-card">
				<div class="mui-card-header">商品参数</div>
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<p>商品货号：{{goodinfo.goods_no}}</p>
                        <p>库存情况：{{goodinfo.stock_quantity}}件</p>
                        <p>上架时间：{{goodinfo.add_time|dateFormat}}</p>
					</div>
				</div>
				<div class="mui-card-footer">
                    <mt-button type="primary" size='large' plain @click='godesc(id)'>图文介绍</mt-button>
                    <mt-button type="danger" size='large' plain @click='gocomment(id)'>商品评论</mt-button>
                </div>
			</div>


    </div>
</template>

<script>
import swiper from '../subcomponents/swiper.vue'
import numbox from '../subcomponents/goodinfo_numbox.vue'
export default {
    data(){
        return {
            id:this.$route.params.id,
            lunboList:[],
            goodinfo:{},
            ballflag:false,
            selectCount:1
        }
    },
    created(){
        this.getlunbotu(),
        this.getgoodinfo()
    },
    methods:{
        getlunbotu(){
            this.$http.get('api/getthumimages/'+this.id).then(result =>{
                if(result.body.status ===0){
                    result.body.message.forEach(item =>{
                        item.img = item.src
                    })
                    this.lunboList = result.body.message
                }
            })
        },
        getgoodinfo(){
            this.$http.get('api/goods/getinfo/'+this.id).then(result =>{
                if(result.body.status===0){
                    this.goodinfo = result.body.message[0]
                }
            })
        },
        addToCar(){
            this.ballflag=!this.ballflag

            var goodinfo ={
                id:this.id,
                count:this.selectCount,
                price:this.goodinfo.sell_price,
                selected:true
            }

            this.$store.commit("addToCar",goodinfo)
        },
        beforeenter(el){
            el.style.transform="translate(0,0)"
        },
        enter(el,done){
            el.offsetWidth;

            //获取到小球的位置
            const ballposition = this.$refs.ball.getBoundingClientRect();
            //获取徽标的位置
            const badgeposition = document.getElementById('badge').getBoundingClientRect();

            const xDist = badgeposition.left - ballposition.left
            const yDist = badgeposition.top - ballposition.top


            el.style.transform = `translate(${xDist}px,${yDist}px)`;
            el.style.transition="all 0.5s cubic-bezier(.4,-0.3,1,.68)"
            done()
            
        },
        afterenter(el){
            this.ballflag= !this.ballflag
        },
        getSelectCount(count){
            this.selectCount=count
            console.log("父组件拿到的数量为"+this.selectCount)
        },
        godesc(id){
            this.$router.push({name:'gooddesc',params:{id:id}})
        },
        gocomment(id){
            this.$router.push({name:'goodscomment',params:{id:id}})
        }

    },

    components:{
        swiper,
        numbox
    }
    
}
</script>

<style lang="scss" scoped>
.goodsinfo-container{
    background-color: #eee;
    overflow:hidden;

    .now-price{
        color:red;
        font-size:16px;
        font-weight:bold;

    }

    .mui-card-footer{
        display:block;
        button{
            margin:15px 0;
        }
    }

    .ball{
        width:15px;
        height:15px;
        z-index:99;
        border-radius:50%;
        position:absolute;
        background-color:red;
               
        top:350px;
        left:135px;
    }
}

    
</style>